79412138 has 16 divisors (see below), whose sum is σ = 131749800. Its totient is φ = 35660736.

The previous prime is 79412107. The next prime is 79412141. The reversal of 79412138 is 83121497.

It can be written as a sum of positive squares in 4 ways, for example, as 77387209 + 2024929 = 8797^2 + 1423^2 .

It is a junction number, because it is equal to n+sod(n) for n = 79412098 and 79412107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40313 + ... + 42236.

Almost surely, 2^79412138 is an apocalyptic number.

79412138 is a deficient number, since it is larger than the sum of its proper divisors (52337662).

79412138 is a wasteful number, since it uses less digits than its factorization.

79412138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82601.

The product of its digits is 12096, while the sum is 35.

The square root of 79412138 is about 8911.3488316865. The cubic root of 79412138 is about 429.8289169776.

The spelling of 79412138 in words is "seventy-nine million, four hundred twelve thousand, one hundred thirty-eight".